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Technology Stocks : MRV Communications (MRVC) opinions? -- Ignore unavailable to you. Want to Upgrade?

To: signist who wrote (13304)	5/7/1999 11:08:00 PM
From: Sector Investor	Read Replies (2) \| Respond to of 42804

John I didn't misinterpret your post, but others might have. Hype is hype - unsubstantiated positive or negative comments. Vision (if accurate) is different. Time will make the difference clear.

To: signist who wrote (13304)	5/7/1999 11:15:00 PM
From: Sector Investor	Respond to of 42804

The more I see about Aranea, the better I like it. These excerpts form the Data spec sheet on the Charlotte's Web site: I will use a few posts to post excerpts. I will NOT interpret everything, but I will highlight the parts I feel will be important to customers. Overview The Aranea-1TM is a backbone terabit router designed for the core of the Internet, featuring the most powerful carrier-class networking system. Seamlessly integrating Cell and packet based traffic with rich set of QoS tools, The Aranea-1TM is the ultimate platform for integrating Voice, Multimedia and data networks. Description The Aranea-1TM architecture is based upon distributed custom designed hardware, providing the ability to grow both in backplane speeds and in packet processing power. *The Aranea-1TM backplane is a non-blocking cell-based backplane starting at speeds of 128Gbps and scaleable up to multiple terabits* per second. The system packet processing capability starts at 200Mpps (Million Packets Per Second) and scales up as the number of ports grows. Interfaces The Aranea-1TM offers the highest port density per rack space, enabling up to 256 OC12 , or 256 Gigabit Ethernet or 64 OC48 interfaces, all in a single 19 inch wide rack, optimally utilizing precious POP rack space. The system's interfaces are connected to the switching fabric through a common interface, referred to as a Virtual "Pipe". Each Pipe can support an aggregated throughput of 4Gbps of combined interfaces: 1 OC48c port, or 4 OC12 ports ,or 16 OC3 ports, or 4 Gigabit Ethernet ports. The OC ports may either be Packet-Over-SONET (POS) interfaces or ATM interfaces.** The ATM interfaces may be connected to the Virtual "Pipe" through a packet segmentation and reassemble (SAR) Integrated device, enabling seamless interaction with any of the other packet based interfaces, or the ATM cells can be switched within the Aranea-1TM powerful switching fabric.

To: signist who wrote (13304)	5/7/1999 11:26:00 PM
From: Sector Investor	Respond to of 42804

Scalability The Aranea Cluster architecture enables the connection of multiple Aranea-1TM machines into a single 4 terabit virtual router with an aggregate bandwidth of multiple terabits per second. The clustered systems may be managed as a single virtual router, regardless of the routers physical location. Up to 16 interfaces may be combined into a single "trunk-pipe" delivering OC768 (40Gbps) for inter-cluster links, using DWDM technology (Dense Wavelength Division Multiplexing). Data packets from the Aranea-1TM interfaces are segmented into fixed sized cells at the inputs to the switching fabric, and reassembled at its outputs. Thus, the core architecture is suitable both for variable size packet networks such as IP networks, and for cell-based networks such as ATM networks. In order to eliminate bandwidth degradation due to packet fragmentation, multiple packets may be packed together on a single cell. The cell-based architecture enables special arbitration hardware to carefully control fair access to the switching fabric and full integration of unicast and multicast traffic for true non-blocking multicasting.